Junk Journal Ideas & How To Make Them

How many times have I wondered what is the purpose of a junk journal other than a creation to look at? What are some junk journal ideas?
How To Use A Junk Journal
Compass & Ink Handmade Journal Blog Post
Since you've wondered too, here is a good overview, by Megan at Compass & Ink, of how they can actually be used and a link to how to make them too. 

Compass & Ink Handmade Journal Post
Using Handmade Junk Journals By Megan
I like the suggestion of using one as a gratitude or spiritual journal. I add that one can also be used as a dream journal in which to record significant dreams. 
Have a Happy, Creative Day!